Jev is Vercel’s fastest-adopted AI model ever

Jev, an AI model from TypeSafe AI, has made history as the fastest-adopted AI model ever. According to Vercel data, Jev saw a remarkable 35% adoption rate among paid teams just two weeks after its launch, outpacing the second most popular model, Sonnet 5.5, by a large margin. This unprecedented growth has made Jev the fastest to achieve adoption in its initial two-week period, according to Vercel.

Developed as a lightweight tool for selecting from predetermined outputs, Jev's efficiency in running cheaper and faster than alternatives like Sonnet has quickly attracted significant attention. The model's innovative approach has inspired competing offerings, including from OpenAI and Amazon. However, comprehensive data on Jev's adoption was previously scarce, but Vercel's AI gateway provided a valuable insight into the model's real-world usage.

Vercel, a pioneer in adopting Jev, replaced GPT-6 Luna for classifying harmful commands, demonstrating the model's practical benefits. The data highlights the growing momentum of open-source models, which now account for over 70% of tokens processed through Vercel's gateway and nearly 25% of total spending. Despite open-source models capturing a larger share of the market, the overall spending on frontier labs has increased tenfold, suggesting a complementary relationship between frontier models and open-source alternatives.